miles



(No Model.) '2 Sheets-sheet 1.A

F. B. MILES. STEAM HAMMER.

ANDREW BLRAHAM. PHOLIU'UT'HU-WASNINGTN. D C

v2 Sheets-.Sheet 2.

(Nomaden.)

F. B. MILES. sTEA-MVHAMMBR. No. 562,231. 'PatentedJune 16, 1896.

UNITED STATES PATENT OFFICE.

FREDERICK B. MILES, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THE BEMENT, MILES & COMPANY, OF SAME PLACE.

STEAM-HAM M ER.

SPECIFICATION forming part of Letters Patent N o. 562,231, dated J une 16, 1896.

Application iled .Tune 7, 1895. Serial No. 552,020. (No model.)

To @ZZ whom it may concern.-

Be it known that I, FREDERICK B. MILES, a citizen of the United States, residing in Philadelphia, Pennsylvania, have invented certain Improvements in Steam-Hammers, of which the following is a specication.

The object of my invention is to so construct a steam-hammer as to prevent the cracking and breaking of the frame by the blow of the hammer. This object I attain by so constructing the steam-hammer that the guides will yield to a certain extent so as to take up the shock incident to the striking of the hammer upon the anvil.

In the accompanying drawings, Figure l is a view of a steam-hammer in elevation with a portion of the frame and hammer in section. Fig. 2 is a sectional plan view on the line 2 2, Fig. 1. Fig. 3 is a sectional plan view on the line 3 3, Fig. l. Fig. 4: is a sectional perspective view of one of the washers. Figs. 5 and 6 are views of modifications of the method of bolting the frame.

Heretofore in the manufacture of steamhammers of the type shown the frame A was made in a single rigid piece. Consequently the frame would, in some instances, break or crack, owing to the constant jarring of the frame by the hammer, and as the frame had no chance to yield the only alternative was to crack or break at a point between the anvil and the cylinder.

By my invention the cracking and breaking of the frame are prevented to a great extent.

Referring to Figs. l, 2, and 3 of the drawings, A is the frame of the steam-hammer, mounted on a suitable foundation, and B is the anvil. C is the cylinder carried by the frame. C is a piston-rod having a piston within the cylinder and carrying at the opposite end the hammer-head D. Suitable valve mechanism of the ordinary construction is provided so that steam can be admitted to either side of the piston as required. The hammer-head D in the present instance is grooved at the edges, and adapted to these grooves are guides e e, secured to the frame A by bolts e. I form a slot a in the front end of the frame. This slot extends throughout the entire height of the frame. ent instance the slot is especially essential in the lower portion of the frame.

In order to hold the two sections q. a' of the frame A in a relative position, I tie the sections together by bolts o' c', one near the base and one near'the guides. These bolts pass entirely through the side a of the frame, and between the head and one side is a springwasher c, and between the nut and the other side is also a spring-Washer '11. These washers are clearly shown in Fig. 4 and are cupped so as to form a very stiff spring, as it will be understood that in order to accomplish my purpose only a very slight movement of the sides or sections a of the frame is necessary, the movementbeing simply enough to take up the shock caused by the blow of the hammer.

In Fig. 5 I have shown anges in the linside edge of each section of the frame and bolts l passing through the flanges. A spring is inserted between the head of the bolt and one of the lianges.

In Fig. 6 I have shown a spring-bolt tying the two sections together.

I claim as my inventionl. The combination of the frame of a steamhammer having a vertical slot at the front to reciprocate in said guides, substantially as` and for the purpose set forth.

2. The combination of a frame of a steamhammer, having a vertical slot dividing the frame into two sections and guides on the frame normally fixed in relation to each other, with a yielding connection for the two sections, substantially as described.

3. The combination of a frame of a steamhammer having a vertical slot, with tie-bolts tending to hold the two sections of the split frame in a position relative to each other, and springs between the bolts and frame, substantially as described. I

4. The combination in a steam-hammer, of the hollow frame, having a vertical slot in the front portion, a cylinder, piston'and pistonrod, a hammer-head adapted to guides in the frame, an anvil, tie-bolts passing transversely In the pres- 5o through the frame at the split portion and spring-washers between the bolts and the frame, substantially as described.

5. The combination of a steam-hammer, the frame having a slot at the front, yielding clamps for the two sections of the frame thus formed7 guides for the hammer-block secured to the frame, cushions between the back of the guides and the frame, with e hammer and mechanism for driving the hammer, snbstan- 1o tially as described.

In testimony whereof I have signed my name to this speciication in the presence of two subscribing witnesses.

FREDERICK B. MIL LX Witnesses:

WILL A. BARR, Jos. yII. KLEIN, 

